Are all types of cats lazy?

Answer 1

That is a judgement that is specific to humans. Animals can't be "lazy" because that is a strictly human definition.

That said, it is a characteristic of cats that they can and do sleep a lot. House cats eat significantly less than dogs of the same size, and so conserve energy by sleeping more. Cats' hunting style, as one would expect for solitary hunters, involves a lot of lying in wait and sudden attacks, and their bodies are optimized for that sort of pattern, conserving energy until a sudden burst is needed.

Note that generally speaking, a healthy cat will be reasonably active; generally, cats get sluggish as they gain weight. An overweight cat will seem significantly less active than one who is at a healthy weight.

Answer 2

LOL! No. cats are not lazy. Like most animals they are as active as they need to be for survival, and have no reason to be active otherwise, even if they do have spells of apparently aimless "play" or of exploring.